Frost-guard for refrigerator-buildings.



N0. 679,526. Patented luly 30, |90l. W. B. CARNAY & L. &. C. SCHWARZ.

FROST GUARD FDR BEFRIGEBATR BUILDINGS.

(Application Bled Feb. 28, 1901.)

(No Model.)

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UNTTED STATES PATENT OEEICE.

lVlLLlAM B. CARNAY, LOUIS SCHWARZ, AND CHARLES SCl/IVVARZ, OF BALLSTONSPA, NEX/V YORK.

FROST-GUARD FOR REFRIGERATOR-BUILDINGS.

SPECIFICATION forming part of Letters Patent No. 679,526, dated July 30,1901.

Application led February 28I 1901. Serial No. 49,222. (No model.)

To (t-ZZ whom, t 1n/tty concern.'

Bc it known that we, VILLIAM B. CARNAY, LOUIS Scnwasaand CHARLESScHvvARz,eiti zens of the United States of America, residing at BallstonSpa, in the county of Saratoga and State of New York,have inventedcertain new and useful Improvements in Frost-Guards forRefrigerator-Buildiugs, of which the following is a specification,reference being had therein to the accompanying drawings, in which-Figure l representsa perspective view, Fig. 2 a sectional View, and Fig.3 a vertical sectional view, of our improved guard or curtain.

A serious need has been felt in connection with refrigerator-buildingsfor an eflicient frost-guard for guarding or screening the goods in thestorage-rooms adjacent to the refrigerating-pipes on the side walls ofthe storage-rooms, and the lack of means to till this need frequentlyoccasions loss of either goods or valuable storage-space; and it is theobject of this invention to provide a simple device which will serve asan efiicient guard or screen to prevent frost collecting on the goodsstored adjacent to the cooling-pipes, and thus prevent the coldpenetrating the goods sufeiently to destroy or damage them, therebypermitting the utilization of the full capacity of said storage-rooms,as more fully hereinafter set forth.

The preferred form ofthe guard is shown in the accompanying drawings, inwhich the outer face (the face farthest from the cooling pipes) of theguard is constructed of a series of closely-joined spruce boards d of asuitable thickness and secured together by a layer l) ofinsulating-paper and strips ot' wood c, the paper lying directly againstand covering the entire inner faces of the boards and the strips beingsecured against the paper around the edges thereof and at suitableintervalssay eighteen inches apart. Upon the strips c is placed anotherlayer d of insulating-paper, which covers the entire inner face of thedevice and is fastened by another series of wooden strips e, nailed tothe strips c. Suitable means, such as hooks and eyes, is provided fordetachably suspending the guard from the ceiling of the storage-room,preferably about ten inches from the wall holding the cooling-pipe, andto maintain the suspended guard approximately parallel with said wall itis provided at its lower end with inward-extending braces or legs f,which are adapted to rest against said wall, as shown.

The completed guard or curtain is coated with a solution ofealcium-chlorid brine, and this coating is desirably renewed eachseason.

lt will be observed that the wall of closelyjoined board, the layer ofinsulating-paper, and the dead-air chamber formed between the paperlayers form an effective barrier in preventing the frost penetrating thegoods adjacent to the pipes, thus permitting goods that would be injuredby being frozen to be stored in these rooms close up to the frost-guard,thereby utilizing to its fullest extent the capacity of these rooms. Thebrine coating serves to prevent frost gathering upon the guard and atthe same time does not become tainted or emit objectionable odors.

It will be observed that the guard is addi= tionally advantageous inthat it assists in promoting circulation of cold air, the warmer airentering over the top of the guard and falling through the space betweenthe guard and the wall as its temperature is reduced by contact with thecooling-pipes. To insure this circulation, it is evident that there mustbe a space for the entrance of the warmer air between the top of theguard and the ceiling of the room, as shown.

Having thus fully described our invention, what we claim is l. Anon-conducting frost-guard for the purpose Set forth provided with meansfor detachably suspending it from the ceiling and at its lower end withinward-extending arms for maintaining it approximately parallel with thewall holding the pipes to be guarded against.

2. In combination with a cold-storage room, the side wall of which isprovided with refrigerating-pipes and whose ceiling is provided with theupper members of hook-and-eye connections, of a non-conducting frostguard or curtain provided at its upper` edge with the lower members ofsaid hook-and-eye connections and at its lower end with means formaintaining it approximately parallel with the wall carrying said pipes,the upper edge IOO of said frost-guard or curtain lying at rdis.- Intestimonyfwhereof We hereunto affix our tance below the eeilingland itsloweredge ter signatures, in the presence of two Witnesses, minatingshort, of the Hoor. this 23d day of February, 1901.

3. A frost-guard for the purpose set forth,

5 consisting of asoiid wooden outer face, a layer of insulating-paperonthe inner sidevthoreof, J'

a series of separated strips, another layer. of" CHARLES SCIUVARZ'insulating-paper on said strips, forming a f fitnessesz dead-air chambemand another series of strips, i LIZZIE SWEENY,

io the whole being fastened together. JOHN D. VAIT.

